VERY FINE APPEARANCE. A RARE EXAMPLE OF THE 1917 12-CENT PERF 10 AT TOP OR BOTTOM. ONLY TWELVE USED EXAMPLES ARE KNOWN, AND THIS IS ONE OF ONLY FIVE EXAMPLES WITH A REGULAR CANCEL. A GREAT RARITY.
Our census of Scott 512b, available at our website at http://siegelauctions.com/dynamic/census/512b/512b.pdf , contains only twelve used and four unused examples of this rarity. For some reason none is well-centered. Seven of the twelve used examples have precancels. Only one of the five with regular cancel is confirmed as sound (no. 8), but it is off-center in two directions.
Census No. 512b-CAN-03. PFC 7052 no longer accompanies.